Question

Double lock nuts must be utilized on rigid metal conduits when voltage exceeds how many volts to ground?

1. 120
2. 150
3. 200
4. 250

Answer 1

1. 120. Double lock nuts must be utilized on rigid metal conduits when the voltage exceeds 120 volts to ground.

Step-by-step explanation:

Double lock nuts must be utilized on rigid metal conduits when the voltage exceeds 120 volts to ground. This is because higher voltages can create a risk of electrical shock and damage if the conduit is not secured properly. The double lock nuts provide an extra layer of protection to ensure that the conduit remains securely in place.